One of the probably first thing you want to change when starting using Ubuntu is to change the default size of the Terminal window. In earlier version of Ubuntu that could be accomplished via the Edit -> Profile Preference menu from the Terminal, but with Ubuntu 10.04 that is no longer possible. Instead do the following:
Go to System -> Preferences -> Preferred Applications -> System (tab)
Change Terminal Emulator to "Custom".
Command: gnome-terminal --geometry=237x24
Execution flag: -x